reciprocity; principle of reciprocity
A formal term used in politics, economics, and international relations to describe mutual exchange of benefits or concessions.
In trade negotiations, the principle of reciprocity is fundamental.
Based on reciprocity, the two countries lowered tariffs.
Often used interchangeably with 互恵主義, but 相互主義 can emphasize mutual action or recognition more broadly, while 互恵主義 specifically highlights mutual benefit.
Compound of 互恵 (mutual benefit) and 主義 (principle, doctrine). The term is a modern coinage used in diplomatic and economic contexts.